Radxa X4 vs Raspberry Pi 400

Benchmarks, specifications, and real-world performance data

Specification
Basic Specifications
Price
RAM8GB4GB
SoC
Intel® UHD Graphics
VideoCore VI
Architecturex86ARM
CPU Cores
4 cores
4× Alder Lake-N @ 3.2GHz
4 cores
4× Cortex-A72 @ 1.5GHz

Legend

Best value in category
Key performance metric
*Manufacturer's RRP
**Affiliate link that may result in commissions if you purchase a qualifying item
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Detailed Reviews

Read our comprehensive reviews from bret.dk featuring data and benchmarks from sbc.compare:

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Radxa X4 (8GB)
Raspberry Pi 400 (4GB)

CPU Performance

Processor performance across single and multi-core workloads

Geekbench 6

Higher Scores are Better

Single-Core
Radxa X4 (8GB)
1,243
Raspberry Pi 400 (4GB)
300
Multi-Core
Radxa X4 (8GB)
2,981
Raspberry Pi 400 (4GB)
742

7-Zip Benchmark

Higher Scores are Better

Single-Core Combined
Radxa X4 (8GB)
3,756 MIPS
Raspberry Pi 400 (4GB)
1,794 MIPS
Multi-Core Combined
Radxa X4 (8GB)
9,597 MIPS
Raspberry Pi 400 (4GB)
6,020 MIPS

High Performance Linpack

Higher Scores are Better

Performance
Radxa X4 (8GB)
27.19 GFLOPS
Raspberry Pi 400 (4GB)
15.39 GFLOPS
Performance/Watt
Radxa X4 (8GB)
1.23 GFLOPS/W
Raspberry Pi 400 (4GB)
2 GFLOPS/W

UnixBench

Higher Scores are Better

Single Core
Radxa X4 (8GB)
1,625
Raspberry Pi 400 (4GB)
577
Multi Core
Radxa X4 (8GB)
3,952
Raspberry Pi 400 (4GB)
1,777

PassMark CPU

Higher Scores are Better

CPU Score
Radxa X4 (8GB)
4,782
Raspberry Pi 400 (4GB)
631

CPU Mining (cpuminer-multi)

Higher Hashrates are Better

Single Core
Radxa X4 (8GB)
5.61 kH/s
Raspberry Pi 400 (4GB)
2.26 kH/s
Multi Core
Radxa X4 (8GB)
22.13 kH/s
Raspberry Pi 400 (4GB)
9.05 kH/s

Memory Performance

Memory bandwidth and throughput benchmarks

PassMark RAM

Higher Scores are Better

RAM Score
Radxa X4 (8GB)
1,815
Raspberry Pi 400 (4GB)
705

AI & LLM Performance

Large Language Model inference performance

Ollama LLM Benchmark

Higher Scores are Better

Tokens/sec
Radxa X4 (8GB)
13.77 tok/s
Raspberry Pi 400 (4GB)
3.63 tok/s
Tokens/Watt
Radxa X4 (8GB)
0.69 tok/W
Raspberry Pi 400 (4GB)
0.56 tok/W
Tokens/Dollar
Radxa X4 (8GB)
0.17 tok/$
Raspberry Pi 400 (4GB)
0.05 tok/$

Storage Performance

Disk I/O throughput measured with FIO

fio Storage Performance - microSD

Higher Speeds are Better • Raspberry Pi 64GB (64GB microSD)

4K Random Read
Radxa X4 (8GB)
No Data
Raspberry Pi 400 (4GB)
16.5 MB/s
4K Random Write
Radxa X4 (8GB)
No Data
Raspberry Pi 400 (4GB)
12.8 MB/s

fio Storage Performance - M.2 NVMe

Higher Speeds are Better • Western Digital Black SN770M (500GB M.2 NVMe)

4K Random Read
Radxa X4 (8GB)
1,069.6 MB/s
Raspberry Pi 400 (4GB)
No Data
4K Random Write
Radxa X4 (8GB)
1,013.3 MB/s
Raspberry Pi 400 (4GB)
No Data

Network Performance

Ethernet and WiFi throughput measured with iPerf3

iPerf3 Network Performance

Higher Speeds are Better

Ethernet Up
Radxa X4 (8GB)
2,350 Mbps
Raspberry Pi 400 (4GB)
943 Mbps
Ethernet Down
Radxa X4 (8GB)
2,355 Mbps
Raspberry Pi 400 (4GB)
941 Mbps
WiFi Up
Radxa X4 (8GB)
No Data
Raspberry Pi 400 (4GB)
92 Mbps
WiFi Down
Radxa X4 (8GB)
No Data
Raspberry Pi 400 (4GB)
91 Mbps

Power & Thermal

Power consumption at idle and under various workloads

Power Consumption

Lower is "Better"

Idle Power
Radxa X4 (8GB)
No Data
Raspberry Pi 400 (4GB)
3W
Load Power
Radxa X4 (8GB)
12.2W
Raspberry Pi 400 (4GB)
5.9W
Ollama Max
Radxa X4 (8GB)
20.5W
Raspberry Pi 400 (4GB)
6.5W
Linpack Max
Radxa X4 (8GB)
22.1W
Raspberry Pi 400 (4GB)
7.7W

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